# Josef Friedrich

> Czech Esperantist (1890-1968)

**Wikidata**: [Q20801771](https://www.wikidata.org/wiki/Q20801771)  
**Source**: https://4ort.xyz/entity/josef-friedrich-q20801771


## References

1. [Database of the Military Historical Archive](http://www.vuapraha.cz/soldier/20139116)
2. [Database of the Military Historical Archive](https://www.vuapraha.cz/legionari/23018)